Secunia has released an advisory for PHP today related to an issue caused by an integer overflow that could allow for bypassing of security of an application.

A weakness and a vulnerability have been reported in PHP 5, where the vulnerability has unknown impact and the weakness can be exploited by malicious, local users to bypass certain security restrictions.

The issue is caused by issues with the chunk_split and realpath functions that can lead to a bypass of the open_basedir restriction on a server.

The issue is marked as "moderately critical" and it is suggested that users update to PHP 5.2.3 to correct the issue.